Asked by star
an object is placed 10 cm from a concave spherical mirror whose radius of curvature is 12 cm. What is the distance of image
a) 5cm
b) 10 cm
c)15cm
d)20cm
e)24cm
a) 5cm
b) 10 cm
c)15cm
d)20cm
e)24cm
Answers
Answered by
drwls
The focal length is f = R/2 = 6 cm.
1/do + 1/di = 1/10 + 1/di = 1/6
1/di = 1/6 - 1/10 = 5/30 -3/30
= 1/15
image distance di = 15 cm
object distance do = 10 cm
1/do + 1/di = 1/10 + 1/di = 1/6
1/di = 1/6 - 1/10 = 5/30 -3/30
= 1/15
image distance di = 15 cm
object distance do = 10 cm
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